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I can only comment on the technical details I know of, not the business objectives of the parties involved. From a technical standpoint, Azure Sphere's OS was
by darzu 6y ago
I can only comment on the technical details I know of, not the business objectives of the parties involved.
From a technical standpoint, Azure Sphere's OS was built on Linux. As far as I know, there isn't anything Windows specific to Pluton. Pluton was a separate (heavily-modified) ARM M4 core which we interfaced with from the main A7 core via a secure mailbox channel, which was again OS agnostic.
- rektide 6y agoFrustrating that the announcement was made with so little technical details easily findable. This kind of decision- to use an ARM core- seem pretty questionable. That's how things always were done, but it feels like another UEFI/FAT32 situation, dragging in old encumbering legacy baggage with big IP implications, when there are available other options (RISC-V). It feels like this decision is being made literally one year too soon. Fixing the old, archaic in to place.
- gmueckl 6y agoIf this is intended to be a secure enclave, then it need to be pretty much a black box with a mininal interface to the outside world. Changing what is inside the box should be possible at any time then. On the other hand, why does it even matter that you know the CPU instruction set that's used inside the box when you can't ever have direct access to it?